Headphone



FIG. 1 is a front perspective view of a headphone, showing our new design in a use condition;

FIG. 2 is a front view thereof;

FIG. 3 is a rear view thereof;

FIG. 4 is a side view thereof;

FIG. 5 is an opposing side view thereof;

FIG. 6 is a top view thereof;

FIG. 7 is a bottom view thereof; and,

FIG. 8 is a perspective view thereof showing the earhook portion in detached condition.

The broken lines showing the environment in the Figures are for illustrative purposes only and form no part of the claimed design. 

CLAIM The ornamental design for a headphone, as shown and described. 